Invincible is one of the greatest comic book series ever created. For fifteen years, this indie superhero epic, written by Robert Kirkman and illustrated by Ryan Ottley and Cory Walker, spanned 144 issues, while following multiple generations, planets, and realms of the multiverse. Each of those 144 issues had its own unique cover art (though certain themes would reappear over the years), and the unique style of Invincible’s covers made it stand out on comic shop shelves.
Source：https://www.cbr.com/the-coolest-invincible-comic-covers-ranked/
